Okay, okay, you already knew that. But did you know that, according to a poll by e-mail marketing firm Constant Contact, a whopping 96 percent of small businesses are on Facebook, social media’s biggest site.

“A survey of 1,972 small businesses found that a staggering 96 percent of them are using Facebook as a marketing tool, and 86 percent found the social network to be effective,” reports AllFacebook.com, citing the study.

The survey also found that:

81 percent of small businesses said they’d used social marketing during the third quarter of 2011, compared to 73 percent in the second; and

“60 percent said they respond to all comments on social media platforms.”

This may seem to fly in the face of a report that a lot of small business owners hate social media — but not really. It’s sensible to think that most CEOs realize that it’s worth their while to create profiles for their businesses on the site, even if they don’t like it, or regularly use it.